Can-soldering block



' (No Model.)

G..H.UAYARS. CAN SOLDBRING BLOCK.v

N0. 417,380 Patented Deo. 17, 1889.-

WWNESSES:

vmuwww UNiTED STATES PATENT OEEICE.

CHARLES HQAYARS, OF SALEM, NEV JERSEY.

CAN-SOLDERING BLOCK.

SPECIFICATION forming part of Letters Patent No. 417,380, dated December 17, 1889.

Application tiled April 12,1889.

To @ZZ whom t may concern.'

Beit known that I, CHARLES I-I. AYARs, a citizen of the United States, residing at Salem, in the county of Salem and State of New Jersey, have invented certain new and useful Improvements in Can-Soldering Blocks and Frames, of -which the following is a specification, reference being had therein to the accompanying drawings.

My invention 4relates to improvements in can-soldering blocks and frames; and the object of my invention is to furnish a can-soldering block and frame which will automatically hold the two edges of the can-cylinder together while being soldered and from which the can-cylinder can be withdrawn after being soldered without the least difficulty.

The old style can-soldering blocks and frames consist of a cylinder the diameter of which corresponds to the diameter of the can to be made and over which the sheet of tin ont of which Jthe can-body is to be formed is placed, and a knife which works up and down and which lies` along the lap of the can to hold it in place and against which the soldering is done. With this device the can-body has to be forced t-ightly against the cylinder with the thumbs, and after being soldered there is usually difficulty in withdrawing it, and with heavytin frequent mists are made.

In my improvement the cylinder is made in two pieces, the under half being stationary and the upper movable, while the knife is a stationary fixture, but may be adjusted.

In the drawings, Figure 1 is a front elevation of my cansoldering block and frame; and Fig. 2 is a side elevation ofFig. l, partly in section.

A is a frame, which is bolted to a suitable bench or table.

B is the soldering block or cylinder, which is made in two pieces. 'The lower piece o; has cast with it a standard o, from which projects a threaded stem g, which passes through the frame A, and which is held in place by a nut j, and the upper piece h is carried on a lever c, which is pivoted to the frame A at cl. l'

C is a spring placed inside of the cylinder B, one end bearing against the lower half a and the other against the lever c, which carsen'n No. 396,947. (No man.)

ries the upper half b of the said cylinder. This spring passes through the standard 0, which is bored out, as indicated by dotted lines in the drawings.

mis an odset or guide pivoted to the lever c by a bolt n. This offset or guide is placed within the upper part of the spring C in order to keep the upperk part of the spring in place du ring the movements of the upper part b of the cylinder B.

D is the knife, which is carried by an arm E upon the frame A, and e is a screw passing through a slot f in the arm E of the frame A and holding the knife D to this arm.

F F are set-screws carried by the frame A and bearing against top of knife D. By means of screws e and F the knife may be raised or lowered, so as to adjust it for different thicknesses of metal used in making the cans.

K is a part of the top of the table or bench to which the frame A is bolted. l

The operation of Iche device is as follows: The foot being placed on the treadle H draws down this treadle, the rod G, and levier c,which is pivoted at d, Fig. 2. The lever c carries the upper part b of the cylinder B,and when this lever is drawn down the upper part b of the cylinder B is moved down against the lower part o.. into the can-body is now placed around the cylinderB, its ends beinglapped so as to come under the knife D. The foot being now revmoved from the treadle H, the expansion of the spring C raises the upper part b of the cylinder until it strikes the knife D, the sheet of tin being securely held by the knife and cylinder.

No great care is required in placing the tin upon the cylinder, as the expansion of the cylinder. draws the sheet of tin tightly around it and insures a perfect iit.

Upon the top of the cylinderl place a groove Z, Fig. l, which allows air to pass between the tin and cylinder and allows the solder to be soaked into the seam better.

After the can-body is soldered the upper part l) of the cylinder is drawn down and the can-body can be readily removed.

I claim- 1 1. The combination, in a can soldering The sheet of tin to be formed IOO block and frame, of a stationary knife, a. cyl- A, movable part b of cylinder, lever c, spring 1o C, andl rod and treadle, all substantially as set fort-h.

In testimony whereof Iafx my signaturein the presence of two witnesses CHARLES H. AYARS.

Witnesses:

H. BELLE AYARS, EMMA D. AYAPS. 

